@unpublished{repository53276,
       publisher = {-},
           title = {Surat tugas buku praktikum pteridophyta},
            note = {Unpublished},
          author = {Maryanti Setyaningsih, Maryanti Setyaningsih},
             url = {http://repository.uhamka.ac.id/id/eprint/53276/}
}